板管蒸发器换热性能CFD仿真及综合试验研究

CFD Simulation and Experimental Research on the Heat Transfer Performance of Tube Plate Evaporator

通过CFD对板管蒸发器传热过程进行仿真分析,综合多方面试验参数,研究分析其性能及工艺性。本文重点研究了胶导热系数和胶厚度对板管蒸发器的传热性能影响,胶粘接强度、防腐工艺要求的试验方法。针对CFD分析结果,选择性地实物验证,试验数据证明,与CFD仿真分析基本一致。结果表明,胶导热系数应大于0.8W/(m·K),胶厚度为0.3~0.4mm,满足浸漆管粘接强度,防腐性能提高。

The performance and manufacturing process of tube plate evaporator were studied through CFD simulation analysis of its heat transfer process and taking consideration of many aspects of experimental parameters.This article investigates the influence of thermal conductivity and thickness of adhesive on heat transfer performance of tube plate evaporator and puts forward the experimental methods of testing the adhesive strength and corrosion prevention demands.According to the CFD results,physical verification was carried on.The experimental data showed the consistency with the simulation analysis results.The results indicated that when the thermal conductivity is more than 0.8 W/(m ? K) meanwhile the adhesive thickness is between 0.3 ~0.4mm can meet the requirements of the adhesive strength of the dip coating tubes and enhancing the anti-corrosion performance.